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Everything Dirt Bike
Make / Model Specific
Yamaha
please help!!!! looked everywhere on the net and cant find anwser!!!!!
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<blockquote data-quote="93yz250PA" data-source="post: 51905" data-attributes="member: 752"><p>i bought a 93 yz250 a few months ago..and it runs good im have a full fmf exhaust setup...</p><p>a fmf fatty gold series pipe and a fmf powercore 2 silencer.</p><p>my question is.....</p><p>i just cleaned the carb out very well and seen it had a </p><p>45 pilot jet and a</p><p>450 main jet.. which seems way to big to me but it runs gr8 on the top end</p><p>but the low rpms suffer dosent bog out it almost feels like the power is cutting in and out...</p><p>its not consistent is the best way i can put it...and PLZ correct me if im wrong the 45 pilot jet</p><p>is part of what controls the low end..</p><p></p><p>basially all im askin if anyone knows the typical jetting that would go well with the fmf setup i have?</p><p></p><p>and i checked the reeds they are in good cond to my suprise lol..</p><p>im runnin 40:1 premix..93 octane</p><p></p><p>needle clip in 2nd position i had some spooge comin out silencer</p><p></p><p>and a ngk 8 plug also curious if neone thinks a 7 would b bettter or worse???</p><p></p><p>Oh YEAH and i put the carb back on and now it wont start!!!!!</p><p>but im pretty sure its the float level im gonna mess with it when i wake up</p><p>but THANK U in advance if u can help me u would be saving me a nuclear meltdown lol</p><p>for a 93 its lookin good...it was a real piece o crap b4 i got it..did alot of custom work to it</p><p>i think the seat cover i made looks gr8 let me know if u wanna see pics of the bike!!!</p></blockquote><p></p>
[QUOTE="93yz250PA, post: 51905, member: 752"] i bought a 93 yz250 a few months ago..and it runs good im have a full fmf exhaust setup... a fmf fatty gold series pipe and a fmf powercore 2 silencer. my question is..... i just cleaned the carb out very well and seen it had a 45 pilot jet and a 450 main jet.. which seems way to big to me but it runs gr8 on the top end but the low rpms suffer dosent bog out it almost feels like the power is cutting in and out... its not consistent is the best way i can put it...and PLZ correct me if im wrong the 45 pilot jet is part of what controls the low end.. basially all im askin if anyone knows the typical jetting that would go well with the fmf setup i have? and i checked the reeds they are in good cond to my suprise lol.. im runnin 40:1 premix..93 octane needle clip in 2nd position i had some spooge comin out silencer and a ngk 8 plug also curious if neone thinks a 7 would b bettter or worse??? Oh YEAH and i put the carb back on and now it wont start!!!!! but im pretty sure its the float level im gonna mess with it when i wake up but THANK U in advance if u can help me u would be saving me a nuclear meltdown lol for a 93 its lookin good...it was a real piece o crap b4 i got it..did alot of custom work to it i think the seat cover i made looks gr8 let me know if u wanna see pics of the bike!!! [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
please help!!!! looked everywhere on the net and cant find anwser!!!!!
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